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228 lines
9.1 KiB
Java
228 lines
9.1 KiB
Java
/*
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* Copyright (c) 1995, 2008, Oracle and/or its affiliates. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* - Neither the name of Oracle or the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package com.jpexs.decompiler.flash.gui.helpers;
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import java.awt.Component;
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import java.awt.Container;
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import javax.swing.Spring;
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import javax.swing.SpringLayout;
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/**
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* A 1.4 file that provides utility methods for creating form- or grid-style
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* layouts with SpringLayout. These utilities are used by several programs, such
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* as SpringBox and SpringCompactGrid.
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*/
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public class SpringUtilities {
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/**
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* A debugging utility that prints to stdout the component's minimum,
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* preferred, and maximum sizes.
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*
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* @param c
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*/
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public static void printSizes(Component c) {
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System.out.println("minimumSize = " + c.getMinimumSize());
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System.out.println("preferredSize = " + c.getPreferredSize());
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System.out.println("maximumSize = " + c.getMaximumSize());
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}
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/**
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* Aligns the first <code>rows</code> * <code>cols</code> components of
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* <code>parent</code> in a grid. Each component is as big as the maximum
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* preferred width and height of the components. The parent is made just big
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* enough to fit them all.
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*
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* @param parent
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* @param rows number of rows
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* @param cols number of columns
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* @param initialX x location to start the grid at
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* @param initialY y location to start the grid at
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* @param xPad x padding between cells
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* @param yPad y padding between cells
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*/
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public static void makeGrid(Container parent,
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int rows, int cols,
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int initialX, int initialY,
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int xPad, int yPad) {
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SpringLayout layout;
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try {
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layout = (SpringLayout) parent.getLayout();
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} catch (ClassCastException exc) {
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System.err.println("The first argument to makeGrid must use SpringLayout.");
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return;
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}
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Spring xPadSpring = Spring.constant(xPad);
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Spring yPadSpring = Spring.constant(yPad);
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Spring initialXSpring = Spring.constant(initialX);
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Spring initialYSpring = Spring.constant(initialY);
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int max = rows * cols;
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//Calculate Springs that are the max of the width/height so that all
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//cells have the same size.
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Spring maxWidthSpring = layout.getConstraints(parent.getComponent(0)).
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getWidth();
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Spring maxHeightSpring = layout.getConstraints(parent.getComponent(0)).
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getHeight();
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for (int i = 1; i < max; i++) {
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SpringLayout.Constraints cons = layout.getConstraints(
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parent.getComponent(i));
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maxWidthSpring = Spring.max(maxWidthSpring, cons.getWidth());
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maxHeightSpring = Spring.max(maxHeightSpring, cons.getHeight());
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}
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//Apply the new width/height Spring. This forces all the
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//components to have the same size.
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for (int i = 0; i < max; i++) {
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SpringLayout.Constraints cons = layout.getConstraints(
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parent.getComponent(i));
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cons.setWidth(maxWidthSpring);
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cons.setHeight(maxHeightSpring);
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}
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//Then adjust the x/y constraints of all the cells so that they
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//are aligned in a grid.
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SpringLayout.Constraints lastCons = null;
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SpringLayout.Constraints lastRowCons = null;
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for (int i = 0; i < max; i++) {
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SpringLayout.Constraints cons = layout.getConstraints(
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parent.getComponent(i));
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if (i % cols == 0) { //start of new row
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lastRowCons = lastCons;
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cons.setX(initialXSpring);
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} else { //x position depends on previous component
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cons.setX(Spring.sum(lastCons.getConstraint(SpringLayout.EAST),
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xPadSpring));
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}
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if (i / cols == 0) { //first row
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cons.setY(initialYSpring);
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} else { //y position depends on previous row
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cons.setY(Spring.sum(lastRowCons.getConstraint(SpringLayout.SOUTH),
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yPadSpring));
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}
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lastCons = cons;
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}
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//Set the parent's size.
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SpringLayout.Constraints pCons = layout.getConstraints(parent);
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pCons.setConstraint(SpringLayout.SOUTH,
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Spring.sum(
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Spring.constant(yPad),
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lastCons.getConstraint(SpringLayout.SOUTH)));
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pCons.setConstraint(SpringLayout.EAST,
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Spring.sum(
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Spring.constant(xPad),
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lastCons.getConstraint(SpringLayout.EAST)));
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}
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/* Used by makeCompactGrid. */
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private static SpringLayout.Constraints getConstraintsForCell(
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int row, int col,
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Container parent,
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int cols) {
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SpringLayout layout = (SpringLayout) parent.getLayout();
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Component c = parent.getComponent(row * cols + col);
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return layout.getConstraints(c);
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}
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/**
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* Aligns the first <code>rows</code> * <code>cols</code> components of
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* <code>parent</code> in a grid. Each component in a column is as wide as
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* the maximum preferred width of the components in that column; height is
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* similarly determined for each row. The parent is made just big enough to
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* fit them all.
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*
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* @param parent
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* @param rows number of rows
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* @param cols number of columns
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* @param initialX x location to start the grid at
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* @param initialY y location to start the grid at
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* @param xPad x padding between cells
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* @param yPad y padding between cells
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*/
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public static void makeCompactGrid(Container parent,
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int rows, int cols,
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int initialX, int initialY,
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int xPad, int yPad) {
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SpringLayout layout;
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try {
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layout = (SpringLayout) parent.getLayout();
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} catch (ClassCastException exc) {
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System.err.println("The first argument to makeCompactGrid must use SpringLayout.");
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return;
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}
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//Align all cells in each column and make them the same width.
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Spring x = Spring.constant(initialX);
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for (int c = 0; c < cols; c++) {
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Spring width = Spring.constant(0);
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for (int r = 0; r < rows; r++) {
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width = Spring.max(width,
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getConstraintsForCell(r, c, parent, cols).
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getWidth());
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}
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for (int r = 0; r < rows; r++) {
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SpringLayout.Constraints constraints
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= getConstraintsForCell(r, c, parent, cols);
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constraints.setX(x);
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constraints.setWidth(width);
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}
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x = Spring.sum(x, Spring.sum(width, Spring.constant(xPad)));
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}
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//Align all cells in each row and make them the same height.
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Spring y = Spring.constant(initialY);
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for (int r = 0; r < rows; r++) {
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Spring height = Spring.constant(0);
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for (int c = 0; c < cols; c++) {
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height = Spring.max(height,
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getConstraintsForCell(r, c, parent, cols).
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getHeight());
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}
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for (int c = 0; c < cols; c++) {
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SpringLayout.Constraints constraints
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= getConstraintsForCell(r, c, parent, cols);
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constraints.setY(y);
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constraints.setHeight(height);
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}
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y = Spring.sum(y, Spring.sum(height, Spring.constant(yPad)));
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}
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//Set the parent's size.
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SpringLayout.Constraints pCons = layout.getConstraints(parent);
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pCons.setConstraint(SpringLayout.SOUTH, y);
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pCons.setConstraint(SpringLayout.EAST, x);
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}
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}
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